Thumb Joint Anatomy

Ask a doctor online now. The joint capsule of the thumb mp joint is a stout structure that attaches circumferentially around the joint and seals the joint.

Patient Education Concord Orthopaedics

Using wire suture or a tendon passer the slip of the apl is passed through the base of the thumb metacarpal and then volarly to dorsally in the index metacarpal.

Thumb joint anatomy. There are two interphalangeal joints ip joints on each finger. This joint moves a lot in some people and just a little in other people. Nerves send signals from the brain to the.

Proximal interphalangeal joint pip. The ip joint in thumb is located at the tip of the finger just before the fingernail starts. The mp joint of the thumb is the middle joint of the thumb located between the cmc joint and the tip of the thumb.

They are responsible for reinforcing the thumb. The thumb has two of each. Distal interphalangeal joint dip the joint closest to the fingertip.

The collateral ligaments are called the anterior and posterior ligaments. The dip joint is located at the tip of the finger. The finger bones are known as phalanges singular phalanx.

Proximal interphalangeal joint pip the joint in the middle of the finger. There are nine interphalangeal joints in each hand two on each finger and one in the thumb. Joint capsule of the thumb.

The pip joint is the joint just below the dip joint. A second hole is made dorsally to volarly 1 cm distal to the base of the index metacarpal. Nerves of the fingers.

Break down the words in the name metacarpophalangeal and you get metacarpo hand bone and phalangeal finger bone. The small ringer middle and index fingers all have the same four joints. Tendons connect muscles to bones.

Metacarpophalangeal joint mcp the joint at the base of the finger. Distal interphalangeal joint dip. The thumb interphalangeal ip joint is similar to the distal interphalangeal dip joint in the fingers.

Interphalangeal joint ip the thumb digit has only two phalanges bones so it only has one joint. Anatomy of the fingers finger bones. Ligaments connect finger bones and help keep them in place.

Finger movement is controlled by muscles in the forearms that pull on finger tendons. Fingers have a complex anatomy. The thumb joint has two collateral ligaments as well as the capsule which is lined by a synovial membrane.

The joint capsule blends with the palmar plate and the collateral ligaments. Each finger has 3 phalanges bones and 3 hinged joints. Each of the fingers has three joints.

Finger Sprained Jammed Information Sinew Therapeutics